Firefox version 128, released on July 9, 2024, supports the CSS '@property' syntax ... that can be achieved using '@property.' The demo Mulligan showed was a button animation like the one below.

In CSS, you can create keyframes and use them for animations on different elements of your Web pages, including buttons. Keyframes consist of a single, reusable animation with properties set at ...

PayPal doesn't offer an obvious way to use a centered button instead, but you can center the button yourself with a small bit of Cascading Style Sheets code. The CSS code modifies the PayPal ...